EP0401637B1 - Lampe électrique - Google Patents

Lampe électrique Download PDF

Info

Publication number
EP0401637B1
EP0401637B1 EP90110082A EP90110082A EP0401637B1 EP 0401637 B1 EP0401637 B1 EP 0401637B1 EP 90110082 A EP90110082 A EP 90110082A EP 90110082 A EP90110082 A EP 90110082A EP 0401637 B1 EP0401637 B1 EP 0401637B1
Authority
EP
European Patent Office
Prior art keywords
base
bulb
face
lamp according
lugs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90110082A
Other languages
German (de)
English (en)
Other versions
EP0401637A3 (fr
EP0401637A2 (fr
Inventor
Fritz Eckhardt
Peter Helbig
Walter Schönherr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0401637A2 publication Critical patent/EP0401637A2/fr
Publication of EP0401637A3 publication Critical patent/EP0401637A3/fr
Application granted granted Critical
Publication of EP0401637B1 publication Critical patent/EP0401637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
    • H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap

Definitions

  • the invention relates to an electric lamp according to the preamble of claim 1.
  • These can be both incandescent lamps and discharge lamps, which are preferably used in motor vehicles.
  • Known lamps of this type use, for example, a one-piece base in which the base stone is made of plastic (DE-GM 82 01 526).
  • the contact lugs are angled by 90 ° at the end of the base stone remote from the piston and, with their angled ends, form the welding lugs for the power supply lines.
  • a motor vehicle lamp with a two-part base is known from DE-GM 81 04 771, in which the base stone is made of ceramic.
  • the contact flag is fastened in the base stone by means of narrow, compressed areas, which however leave a lot of play.
  • the object of the invention is to provide a lamp which is particularly simple and reliable connection between the contact lugs and the base part holding them. This object is achieved by the characterizing features of claim 1. Further advantageous embodiments of the invention can be found in the dependent claims directed thereon.
  • a particular advantage of the invention is that the connection is gentle on the material and can be produced quickly.
  • a secure and play-free attachment of the contact lug to the base stone is achieved, which takes into account the large tolerances in dimensions that can occur in particular with ceramic parts.
  • the contact lug which has a counter bearing due to the welding eye, is "tightened" by turning towards the bevel.
  • the invention is applicable to a variety of different types of lamps. It is suitable for incandescent lamps, in particular halogen incandescent lamps, with one or more lamps, in which, for example, the lamp bulb is connected to a metallic base sleeve by a holding element.
  • the base sleeve has the shape of a hollow cylinder into which a ceramic base stone is fitted as a full cylinder (DE-GM 89 02 247).
  • the invention can also be used with discharge lamps, such as that shown in FIG. 3 EP-OS 231 936 are described.
  • the base has an approximately cup-shaped base part made of plastic, in the thickened bottom of which the contact tabs are fastened.
  • the base part holding the contact lugs can also have a different shape, for example cuboid. It is essential that it is a solid body which offers the possibility of a stop on the end surface remote from the piston and which has a possibility of entanglement on the end surface near the piston. It is also possible to reverse the functional assignment.
  • the welding lug is bent out of the center of the flesh of the stamping sheet, while narrow supports continue on both sides to the end of the contact lug near the piston.
  • the end forms a narrow arch or a bridge, which is interrupted by a slot in the middle.
  • the bow halves can have a constant height. But they are advantageously bevelled so that their height on the underside (facing the welding eye) increases towards the free end. This creates a clear stopping point when the arch halves are interlaced on the base stone, since only the lower edge of the free end lies against the slope of the base stone.
  • the underside of the arch half abuts the support at an acute angle. However, this corner can also be bulged, which makes it easier to turn the bow halves.
  • the invention is suitable for lamps with a one-part or multi-part base, preferably a two-part base. It can be connected to the lamp bulb directly or via a holding element.
  • the lamp bulb can be pinched on one or two sides.
  • the base part holding the contact tab can, for example, be made of plastic, ceramic or micaver.
  • the connection between the contact flag and the base stone described here is of particular importance if the base stone is made of ceramic, since ceramic parts have a considerably higher tolerance (approx.0.4 mm) than parts made of plastic (typical tolerance approx.0.05 mm) ).
  • ceramic components are sensitive to impact loads, which is why protecting the material is of particular importance here.
  • the lamp is manufactured in such a way that first the base sleeve and the lamp bulb with the luminous element or the electrodes are adjusted and fastened to one another via a holding element. Only then is the base stone, which is already fitted with the contact elements, inserted from below into the base sleeve and the tabs on the base sleeve are angled.
  • This process flow has the advantage that lamps in which a misalignment is found during ongoing quality control can be rejected before the base stone is installed. This makes it possible to disassemble and reassemble these lamps. In this way, the additional consumption can be reduced.
  • a halogen incandescent lamp with a power of 50 W shown schematically in FIGS. 1 and 2 is a lamp of the so-called type H7, which replaces the lamp of the so-called type H1 in certain applications.
  • these lamps serve as high and low beams in car headlights.
  • the cylindrical hard glass bulb 31, which is pinched on one side, is filled with inert gas and a halogen additive and with an axial helix 32 equipped. Two power leads 51 for the coil are melted into the pinch 33.
  • the pinch 33 of the piston is resiliently clamped in a one-piece, approximately cup-shaped holding element 34 made of a copper alloy.
  • the cup base 35 which faces the piston, has a double-T-shaped slot in which the pinch 33 is fitted.
  • Four bumps 36 on the cup base 35 serve as a stop on which four projections 30, which are formed on the side of the pinch 33, rest.
  • the side wall of the cup-shaped holding element 34 is divided into three sections.
  • the first is a circular ring 37 which is directly adjacent to the bottom of the cup and surrounds the pinch 33 relatively closely.
  • the adjoining second section is a truncated cone 38, which in turn merges into the third section 39, again an axially parallel circular ring 39 with a larger diameter than the first circular ring.
  • the circular ring 39 has at its end remote from the piston four tongues 41 distributed uniformly over the circumference, which are separated from one another by generous free spaces 42.
  • the base sleeve 40 is an axially aligned hollow cylinder with a collar 43 which is bent outwards on the piston side over approximately half the height of the hollow cylinder.
  • the fragmentary circular ring 39 of the holding element lies on the outside of the collar 43 and is welded to it in a manner known per se.
  • an adjusting ring 44 is formed, which is placed approximately halfway up the hollow cylinder transversely to the lamp axis.
  • the entire base sleeve 40, including collar 43 and adjusting ring 44, is made in one piece from a cylindrical part using the pull-in process.
  • the base sleeve is designed so that the holding element can be welded from the outside and thus easily accessible. This eliminates annoying holes, such as when welding on the inside of the base sleeve.
  • the welding technology can be chosen arbitrarily (e.g. laser welding, resistance welding). The welding process, which requires a certain contact pressure of the individual parts, can no longer lead to any deformation and the associated misalignment of the lamp in the extremely stable configuration of the base sleeve and holding element.
  • the bottom 46a of the recess 46 runs parallel to the end face 47 in this exemplary embodiment.
  • the end 49 of the base sleeve remote from the piston rests on a radially outwardly projecting edge 50 of the base block, so that overall a backlash-free mounting of the base block in the base sleeve is achieved.
  • the base stone is designed as a solid cylinder.
  • the two power supply lines 51, which are led out of the pinch 33, are in two tapered, continuous openings 54, which are provided near the axis in the base stone 48, threaded and connected on the end surface 47 remote from the piston with the welding lugs 55 of two contact lugs 56.
  • the flat stamping bodies of the contact lugs 56 (FIGS.
  • the welding eye 55 is cut out of the flesh of the punch body, narrow supports 64 remaining in the plane of the punch body on both sides of the recess 69 of the eye.
  • the carriers 64 lead to the piston-side end 61 of the contact lug 56.
  • the end 61 of each contact lug 56 projecting from the end face 59 forms a narrow arc above the welding eye before installation in the base stone and is interrupted in the middle by a slot 65, so that two arc halves 62 be formed.
  • the underside 63 of each arch half 62 facing the welding eye is chamfered in such a way that the height of the arch half on its underside 63 increases towards the center of the contact lug (free end 66) (FIG. 3a).
  • the two bow halves 62 are rotated by a maximum of 90 ° in the direction of the bevel 60 (FIG. 1 or arrow in FIG. 3 b) and rest against the bottom edge 63 a of the free end 66 thereof.
  • the axis of rotation lies in the plane of the contact lug in Height of the carrier 64.
  • this exemplary embodiment is distinguished by a particularly low overall height of the lamp. It is 62 mm.
  • This very compact lamp particularly meets the requirements of automotive engineering (e.g. low wind resistance).
  • the low overall height is achieved through an optimized overall design of the base (including the holding element). It is also important to note the higher thermal load-bearing capacity of a ceramic base stone, which enables it to be closer to the piston than plastic materials.
  • the tolerance compensation required when using ceramics is realized by particularly space-saving measures, while at the same time the necessary high adjustment accuracy had to be considered.
  • FIG. 4 A further exemplary embodiment of a contact lug (before installation) is shown in FIG. 4. It essentially corresponds to the first exemplary embodiment, the same parts being designated by the same reference numbers.
  • the approach of the underside 63 of the arch halves 62 takes place on the inside of the carrier 64 in this case via a rounded recess 67. This ends on the carrier side in a bevel 68, through which the width of the carrier 64 is reduced to approximately one third of its length towards the end 61 near the piston. It decreases from 2 mm to 1.7 mm per beam.
  • the free ends 66 of the bow halves 62 forming the slot 65 are chamfered towards the welding eye in such a way that the slot 65 widens.
  • the stamping body of the contact lug 65 is ground at both ends 61 in such a way that the thickness of the stamping plate (0.8 mm) tapers in half.

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Connecting Device With Holders (AREA)

Claims (8)

  1. Lampe électrique constituée d'au moins
    - une ampoule de verre (31) comportant un moyen de production de lumière (32),
    - des entrées (51) de courant qui sortent à un pincement (33),
    - un culot, qui contient une partie en un matériau isolant (désignée ci-après sous le terme de bloc de culot (48)),
    - des éléments de contact, qui sont fixés sur le bloc de culot (48) et sont reliés d'une manière électriquement conductrice aux entrées (51) de courant,
    caractérisée par le fait que le bloc de culot (48) est une pièce pleine ayant une face d'extrémité (59) proche de l'ampoule et une face d'extrémité (47) éloignée de l'ampoule, la face d'extrémité (59) du bloc de culot, qui est proche de l'ampoule, ayant des rampes (60), et que les éléments de contact sont réalisés sous la forme de languettes (56), qui sont ancrées dans des fentes longitudinales continues (57) ménagées dans le bloc de culot, les languettes (56) possédant des parties coudées en forme d'oeillets (55), qui s'appliquent à la surface d'extrémité (47) du bloc de culot, qui est éloignée de l'ampoule, tandis que l'extrémité (61) des languettes, qui est du côté de l'ampoule, dépasse de la face de l'extrémité (52), qui est du côté de l'ampoule, y est repliée et s'applique, en exerçant une action de blocage, à la face d'extrémité (59), qui est du côté de l'ampoule, dans la zone des rampes (60).
  2. Lampe suivant la revendication 1, caractérisée par le fait que les oeillets sont découpés dans la bande des languettes de contact et que l'extrémité (61) des languettes, qui est du côté de l'ampoule, est fendue d'une manière continue jusqu'à l'ouverture (69) des oeillets.
  3. Lampe suivant la revendication 2, caractérisée par le fait que l'extrémité (61) de la languette de contact (56), qui est du coté de l'ampoule, a la forme d'un arc, qui est fendu en position médiane par une fente (65) et forme deux moitiés d'arc (62) ayant des extrémités libres, dont l'une au moins est coudée.
  4. Lampe suivant l'une des revendications précédentes, caractérisée par le fait que l'axe de rotation de la partie coudée de l'extrémité des languettes de contact, qui est du côté de l'ampoule, est dans le plan des languettes de contact.
  5. Lampe suivant la revendication 3, caractérisée par le fait que la face inférieure (63) de chaque moitié d'arc est biseautée de sorte que la hauteur de la moitié d'arc augmente en direction de l'extrémité libre (66), en sorte que l'extrémité libre (66) s'applique, par son bord inférieur (63a), à la rampe (60) de la face d'extrémité proche de l'ampoule.
  6. Lampe suivant la revendication 1, caractérisée par le fait que le culot est constitué d' un bloc de culot et d'une douille de culot (40), qui forme un cylindre creux, le bloc de culot (48) étant inséré sous la forme d'un cylindre plein dans la douille de culot (40).
  7. Lampe suivant la revendication 1 ou 6, caractérisée par le fait que le bloc de culot (48) est en céramique.
  8. Lampe suivant la revendication 1, caractérisé par le fait que l'ampoule (31) et le culot sont réunis par un élément de retenue (34).
EP90110082A 1989-06-09 1990-05-28 Lampe électrique Expired - Lifetime EP0401637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8907108U 1989-06-09
DE8907108U DE8907108U1 (fr) 1989-06-09 1989-06-09

Publications (3)

Publication Number Publication Date
EP0401637A2 EP0401637A2 (fr) 1990-12-12
EP0401637A3 EP0401637A3 (fr) 1991-05-02
EP0401637B1 true EP0401637B1 (fr) 1994-01-26

Family

ID=6839966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90110082A Expired - Lifetime EP0401637B1 (fr) 1989-06-09 1990-05-28 Lampe électrique

Country Status (5)

Country Link
EP (1) EP0401637B1 (fr)
JP (2) JP2503160Y2 (fr)
KR (2) KR960000559Y1 (fr)
DE (2) DE8907108U1 (fr)
ES (1) ES2048360T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004012293U1 (de) * 2004-08-05 2005-12-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Einseitig gesockelte Lampe

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9011351U1 (fr) * 1990-08-02 1990-10-25 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
US5227690A (en) * 1990-12-03 1993-07-13 U.S. Philips Corporation Capped electric lamp
EP0499316A1 (fr) * 1991-02-15 1992-08-19 Koninklijke Philips Electronics N.V. Lampe électrique à culot
US5272409A (en) * 1991-06-03 1993-12-21 U.S. Philips Corporation Capped lamp/reflector unit
EP0533250A1 (fr) * 1991-09-17 1993-03-24 Koninklijke Philips Electronics N.V. Lampe électrique munie d'un culot
KR100437557B1 (ko) * 1996-01-11 2004-07-16 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 접착제없이캡이씌워지는전기램프
DE20300699U1 (de) 2003-01-16 2003-03-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Lampensockel und Lampe mit einem Lampensockel
EP2248149B1 (fr) * 2008-02-29 2011-11-30 Koninklijke Philips Electronics N.V. Culot de lampe et son procédé de fabrication
DE102010002650B4 (de) * 2010-03-08 2012-11-22 Osram Ag Halogenglühlampe für Fahrzeugscheinwerfer
KR102544818B1 (ko) * 2021-02-17 2023-06-16 국방과학연구소 챔버, 이를 포함한 원자 증기셀 제조 시스템 및 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655742Y2 (fr) * 1975-07-30 1981-12-25
DE3102434A1 (de) * 1981-01-26 1982-08-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Elektrische gluehlampe
DE3128346A1 (de) * 1981-07-17 1983-01-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Verfahren zur herstellung einer halogengluehlampe fuer kraftfahrzeugscheinwerfer
DE3806978A1 (de) * 1988-03-03 1989-09-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Kittlos gesockelte elektrische lampe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004012293U1 (de) * 2004-08-05 2005-12-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Einseitig gesockelte Lampe

Also Published As

Publication number Publication date
KR960000559Y1 (ko) 1996-01-17
EP0401637A3 (fr) 1991-05-02
DE59004383D1 (de) 1994-03-10
KR950010122Y1 (ko) 1995-11-27
KR910001602U (ko) 1991-01-24
DE8907108U1 (fr) 1989-08-10
EP0401637A2 (fr) 1990-12-12
JPH0313662U (fr) 1991-02-12
KR910001601U (ko) 1991-01-24
JP2503160Y2 (ja) 1996-06-26
ES2048360T3 (es) 1994-03-16
JPH0312351U (fr) 1991-02-07

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